FreeBSD-5.3/lib/libncp/ncpl_subr.c
/*
* Copyright (c) 1999, Boris Popov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libncp/ncpl_subr.c,v 1.10 2004/06/02 03:41:10 bp Exp $");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/sysctl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <ctype.h>
#include <fcntl.h>
#include <paths.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <netncp/ncp_lib.h>
#include <netncp/ncp_rcfile.h>
#include <netncp/ncp_nls.h>
/*#include <netncp/ncp_cfg.h>*/
#include <netncp/ncpio.h>
#define _PATH_NCP _PATH_DEV NCP_NAME
void
ncp_add_word_lh(struct ncp_buf *conn, u_int16_t x) {
setwle(conn->packet, conn->rqsize, x);
conn->rqsize += 2;
return;
}
void
ncp_add_dword_lh(struct ncp_buf *conn, u_int32_t x) {
setdle(conn->packet, conn->rqsize, x);
conn->rqsize += 4;
return;
}
void
ncp_add_word_hl(struct ncp_buf *conn, u_int16_t x){
setwbe(conn->packet, conn->rqsize, x);
conn->rqsize += 2;
return;
}
void
ncp_add_dword_hl(struct ncp_buf *conn, u_int32_t x) {
setdbe(conn->packet, conn->rqsize, x);
conn->rqsize += 4;
return;
}
void
ncp_add_mem(struct ncp_buf *conn, const void *source, int size) {
memcpy(conn->packet+conn->rqsize, source, size);
conn->rqsize += size;
return;
}
void
ncp_add_mem_nls(struct ncp_buf *conn, const void *source, int size) {
ncp_nls_mem_u2n(conn->packet+conn->rqsize, source, size);
conn->rqsize += size;
return;
}
void
ncp_add_pstring(struct ncp_buf *conn, const char *s) {
int len = strlen(s);
if (len > 255) {
ncp_printf("ncp_add_pstring: string too long: %s\n", s);
len = 255;
}
ncp_add_byte(conn, len);
ncp_add_mem(conn, s, len);
return;
}
void
ncp_add_handle_path(struct ncp_buf *conn, nuint32 volNumber, nuint32 dirNumber,
int handleFlag, const char *path)
{
ncp_add_byte(conn, volNumber);
ncp_add_dword_lh(conn, dirNumber);
ncp_add_byte(conn, handleFlag);
if (path) {
ncp_add_byte(conn, 1); /* 1 component */
ncp_add_pstring(conn, path);
} else {
ncp_add_byte(conn, 0);
}
}
void
ncp_init_request(struct ncp_buf *conn) {
conn->rqsize = 0;
conn->rpsize = 0;
}
void
ncp_init_request_s(struct ncp_buf *conn, int subfn) {
ncp_init_request(conn);
ncp_add_word_lh(conn, 0);
ncp_add_byte(conn, subfn);
}
u_int16_t
ncp_reply_word_hl(struct ncp_buf *conn, int offset) {
return getwbe(ncp_reply_data(conn, offset), 0);
}
u_int16_t
ncp_reply_word_lh(struct ncp_buf *conn, int offset) {
return getwle(ncp_reply_data(conn, offset), 0);
}
u_int32_t
ncp_reply_dword_hl(struct ncp_buf *conn, int offset) {
return getdbe(ncp_reply_data(conn, offset), 0);
}
u_int32_t
ncp_reply_dword_lh(struct ncp_buf *conn, int offset) {
return getdle(ncp_reply_data(conn, offset), 0);
}
int
ncp_connect(struct ncp_conn_args *li, int *connHandle) {
struct ncpioc_connect args;
int fd, r;
if ((fd = open(_PATH_NCP, O_RDWR)) < 0)
return (errno);
args.ioc_li = li;
args.ioc_connhandle = connHandle;
errno = 0;
(void)ioctl(fd, NCPIOC_CONNECT, &args);
r = errno;
close(fd);
return (r);
}
int
ncp_disconnect(int cH) {
DECLARE_RQ;
ncp_init_request(conn);
ncp_add_byte(conn, NCP_CONN_CONNCLOSE);
return ncp_conn_request(cH, conn);
}
int
ncp_request(int connHandle,int function, struct ncp_buf *ncpbuf){
struct ncpioc_request args;
int fd, r;
if ((fd = open(_PATH_NCP, O_RDWR)) < 0)
return (errno);
args.ioc_connhandle = connHandle;
args.ioc_fn = function;
args.ioc_ncpbuf = ncpbuf;
errno = 0;
(void)ioctl(fd, NCPIOC_REQUEST, &args);
r = errno;
close(fd);
return (r);
}
int
ncp_conn_request(int connHandle, struct ncp_buf *ncpbuf){
return (ncp_request(connHandle, NCP_CONN, ncpbuf));
}
int
ncp_conn_scan(struct ncp_conn_loginfo *li, int *connid) {
struct ncpioc_connscan args;
int fd, r;
if ((fd = open(_PATH_NCP, O_RDWR)) < 0)
return (errno);
args.ioc_li = li;
args.ioc_connhandle = connid;
errno = 0;
(void)ioctl(fd, NCPIOC_CONNSCAN, &args);
r = errno;
close(fd);
return (r);
}
NWCCODE
NWRequest(NWCONN_HANDLE cH, nuint16 fn,
nuint16 nrq, NW_FRAGMENT* rq,
nuint16 nrp, NW_FRAGMENT* rp)
{
int error;
struct ncp_conn_frag nf;
DECLARE_RQ;
ncp_init_request(conn);
ncp_add_byte(conn, NCP_CONN_FRAG);
nf.fn = fn;
nf.rqfcnt = nrq;
nf.rqf = rq;
nf.rpf = rp;
nf.rpfcnt = nrp;
ncp_add_mem(conn, &nf, sizeof(nf));
error = ncp_conn_request(cH, conn);
return error;
}
int
ncp_initlib(void){
int error;
int kv;
size_t kvlen = sizeof(kv);
static int ncp_initialized;
if (ncp_initialized)
return 0;
error = sysctlbyname("net.ncp.version", &kv, &kvlen, NULL, 0);
if (error) {
if (errno == ENOENT)
fprintf(stderr, "Kernel module ncp is not loaded.\n");
else
fprintf(stderr, "%s: kernel module is old, please recompile it.\n", __FUNCTION__);
return error;
}
if (NCP_VERSION != kv) {
fprintf(stderr, "%s: kernel module version(%d) don't match library(%d).\n", __FUNCTION__, kv, NCP_VERSION);
return EINVAL;
}
if ((error = ncp_nls_setrecode(0)) != 0) {
fprintf(stderr, "%s: can't initialise recode\n", __FUNCTION__);
return error;
}
if ((error = ncp_nls_setlocale("")) != 0) {
fprintf(stderr, "%s: can't initialise locale\n", __FUNCTION__);
return error;
}
ncp_initialized++;
return 0;
}
/*
*/
int ncp_opterr = 1, /* if error message should be printed */
ncp_optind = 1, /* index into parent argv vector */
ncp_optopt, /* character checked for validity */
ncp_optreset; /* reset getopt */
char *ncp_optarg; /* argument associated with option */
#define BADCH (int)'?'
#define BADARG (int)':'
#define EMSG ""
int
ncp_getopt(nargc, nargv, ostr)
int nargc;
char * const *nargv;
const char *ostr;
{
static char *place = EMSG; /* option letter processing */
char *oli; /* option letter list index */
int tmpind;
if (ncp_optreset || !*place) { /* update scanning pointer */
ncp_optreset = 0;
tmpind = ncp_optind;
while (1) {
if (tmpind >= nargc) {
place = EMSG;
return (-1);
}
if (*(place = nargv[tmpind]) != '-') {
tmpind++;
continue; /* lookup next option */
}
if (place[1] && *++place == '-') { /* found "--" */
ncp_optind = ++tmpind;
place = EMSG;
return (-1);
}
ncp_optind = tmpind;
break;
}
} /* option letter okay? */
if ((ncp_optopt = (int)*place++) == (int)':' ||
!(oli = strchr(ostr, ncp_optopt))) {
/*
* if the user didn't specify '-' as an option,
* assume it means -1.
*/
if (ncp_optopt == (int)'-')
return (-1);
if (!*place)
++ncp_optind;
if (ncp_opterr && *ostr != ':')
(void)fprintf(stderr,
"%s: illegal option -- %c\n", _getprogname(), ncp_optopt);
return (BADCH);
}
if (*++oli != ':') { /* don't need argument */
ncp_optarg = NULL;
if (!*place)
++ncp_optind;
}
else { /* need an argument */
if (*place) /* no white space */
ncp_optarg = place;
else if (nargc <= ++ncp_optind) { /* no arg */
place = EMSG;
if (*ostr == ':')
return (BADARG);
if (ncp_opterr)
(void)fprintf(stderr,
"%s: option requires an argument -- %c\n",
_getprogname(), ncp_optopt);
return (BADCH);
}
else /* white space */
ncp_optarg = nargv[ncp_optind];
place = EMSG;
++ncp_optind;
}
return (ncp_optopt); /* dump back option letter */
}
/*
* misc options parsing routines
*/
int
ncp_args_parserc(struct ncp_args *na, char *sect, ncp_setopt_t *set_callback) {
int len, error;
for (; na->opt; na++) {
switch (na->at) {
case NCA_STR:
if (rc_getstringptr(ncp_rc,sect,na->name,&na->str) == 0) {
len = strlen(na->str);
if (len > na->ival) {
fprintf(stderr,"rc: Argument for option '%c' (%s) too long\n",na->opt,na->name);
return EINVAL;
}
set_callback(na);
}
break;
case NCA_BOOL:
error = rc_getbool(ncp_rc,sect,na->name,&na->ival);
if (error == ENOENT) break;
if (error) return EINVAL;
set_callback(na);
break;
case NCA_INT:
if (rc_getint(ncp_rc,sect,na->name,&na->ival) == 0) {
if (((na->flag & NAFL_HAVEMIN) &&
(na->ival < na->min)) ||
((na->flag & NAFL_HAVEMAX) &&
(na->ival > na->max))) {
fprintf(stderr,"rc: Argument for option '%c' (%s) should be in [%d-%d] range\n",na->opt,na->name,na->min,na->max);
return EINVAL;
}
set_callback(na);
};
break;
default:
break;
}
}
return 0;
}
int
ncp_args_parseopt(struct ncp_args *na, int opt, char *optarg, ncp_setopt_t *set_callback) {
int len;
for (; na->opt; na++) {
if (na->opt != opt) continue;
switch (na->at) {
case NCA_STR:
na->str = optarg;
if (optarg) {
len = strlen(na->str);
if (len > na->ival) {
fprintf(stderr,"opt: Argument for option '%c' (%s) too long\n",na->opt,na->name);
return EINVAL;
}
set_callback(na);
}
break;
case NCA_BOOL:
na->ival = 0;
set_callback(na);
break;
case NCA_INT:
errno = 0;
na->ival = strtol(optarg, NULL, 0);
if (errno) {
fprintf(stderr,"opt: Invalid integer value for option '%c' (%s).\n",na->opt,na->name);
return EINVAL;
}
if (((na->flag & NAFL_HAVEMIN) &&
(na->ival < na->min)) ||
((na->flag & NAFL_HAVEMAX) &&
(na->ival > na->max))) {
fprintf(stderr,"opt: Argument for option '%c' (%s) should be in [%d-%d] range\n",na->opt,na->name,na->min,na->max);
return EINVAL;
}
set_callback(na);
break;
default:
break;
}
break;
}
return 0;
}
/*
* Print a (descriptive) error message
* error values:
* 0 - no specific error code available;
* -999..-1 - NDS error
* 1..32767 - system error
* the rest - requester error;
*/
void
ncp_error(const char *fmt, int error, ...) {
va_list ap;
fprintf(stderr, "%s: ", _getprogname());
va_start(ap, error);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (error == -1)
error = errno;
if (error > -1000 && error < 0) {
fprintf(stderr, ": dserr = %d\n", error);
} else if (error & 0x8000) {
fprintf(stderr, ": nwerr = %04x\n", error);
} else if (error) {
fprintf(stderr, ": syserr = %s\n", strerror(error));
} else
fprintf(stderr, "\n");
}
char *
ncp_printb(char *dest, int flags, const struct ncp_bitname *bnp) {
int first = 1;
strcpy(dest, "<");
for(; bnp->bn_bit; bnp++) {
if (flags & bnp->bn_bit) {
strcat(dest, bnp->bn_name);
first = 0;
}
if (!first && (flags & bnp[1].bn_bit))
strcat(dest, "|");
}
strcat(dest, ">");
return dest;
}